46295 + Interview Questions in Chemistry

1.	explain hunsidecker reaction
Answer» explain hunsidecker reaction

Discussion

2.	Why is SO2 more acidic than SeO2
Answer» Why is SO2 more acidic than SeO2

Discussion

3.	Among the alkaline earth metals, the element having the lowest melting point is:
Answer» Among the alkaline earth metals, the element having the lowest melting point is:

Discussion

4.	Which of the following is a free radical substitution?
Answer» Which of the following is a free radical substitution?

Discussion

5.	250 mL of a 2% (w/v) NaOH solution is diluted up to 600 mL. Find the resultant molarity of the solution.
Answer» $250 m L$ of a $2 % (w / v) N a O H$ solution is diluted up to $600 m L$ . Find the resultant molarity of the solution.

Discussion

6.	Select the acid with the highest Ka (i.e., lowest pKa).
Answer» Select the acid with the highest $K_{a}$ (i.e., lowest $p K_{a}$ ).

Discussion

7.	59. A solution is made by dissolving 20g of a substance in 500mL of water. Its osmotic pressure was found to be 600mm of Hg at 15^° C. Find the molecular weight of the substance
Answer» 59. A solution is made by dissolving 20g of a substance in 500mL of water. Its osmotic pressure was found to be 600mm of Hg at 15^° C. Find the molecular weight of the substance

Discussion

8.	What is the material used in push button lighter or gas lighter?
Answer» What is the material used in push button lighter or gas lighter?

Discussion

9.	number of isomers of \lbrack Co(NH3)4Cl2\rbrack and total possible isomers of \lbrack Cu(NH3)4\rbrack\lbrack PtCl4\rbrack are
Answer» number of isomers of \lbrack Co(NH3)4Cl2\rbrack and total possible isomers of \lbrack Cu(NH3)4\rbrack\lbrack PtCl4\rbrack are

Discussion

10.	Predict the product for the following elimination reaction.
Answer» Predict the product for the following elimination reaction.

Discussion

11.	31. How many number of atoms in 10ml of ammonia?
Answer» 31. How many number of atoms in 10ml of ammonia?

Discussion

12.	The presence of _____ ion is confirmed by lead acetate paper test.
Answer» The presence of _____ ion is confirmed by lead acetate paper test.

Discussion

13.	In an atom, the total number of electrons having the quantum numbers n=4, \|ml\|=1 and ms=−12, is
Answer» In an atom, the total number of electrons having the quantum numbers $n = 4, \| m_{l} \| = 1$ and $m_{s} = - \frac{1}{2}$ , is

Discussion

14.	What are the structures of 1 pentanal , 3 pentanone ,Ethyl alcohol and isobutyl alcohol
Answer» What are the structures of 1 pentanal , 3 pentanone ,Ethyl alcohol and isobutyl alcohol

Discussion

15.	Is a 100% co-valent compound possible?
Answer» Is a 100% co-valent compound possible?

Discussion

16.	What is the starting material for the given oxidation reaction?
Answer» What is the starting material for the given oxidation reaction?

Discussion

17.	Myoglobin is present in
Answer» Myoglobin is present in

Discussion

18.	(a) Write the structures of A, B, C and D in the following reactions: CH3CN(i)SnCl2−HCl−−−−−−−−−→(ii)H2OAdil.NaOH−−−−−−→BHeat−−−→C ↓HCN D (b) Distinguish between: (i) C6H5−CH=CH−COCH3 and (ii) CH3CH2COOH and HCOOH (c) Arrange the following in the increasing order of their boiling points: CH3CH2OH, CH3COCH3, CH3COOH
Answer» (a) Write the structures of A, B, C and D in the following reactions: $\begin{matrix} C H_{3} C N & (i) S n C l_{2} - H C l - -------- \to (i i) H_{2} O A d i l . N a O H - ----- \to & B H e a t - -- \to & C ↓ H C N D \end{matrix}$ (b) Distinguish between: (i) $C_{6} H_{5} - C H = C H - C O C H_{3}$ and (ii) $C H_{3} C H_{2} C O O H$ and $H C O O H$ (c) Arrange the following in the increasing order of their boiling points: $C H_{3} C H_{2} O H, C H_{3} C O C H_{3}, C H_{3} C O O H$

Discussion

19.	Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:
Answer» Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:

Discussion

20.	29. Write reaction of the final alkylation product of aniline with exvess of methyl iodide in the presence of sodium carbonate solution
Answer» 29. Write reaction of the final alkylation product of aniline with exvess of methyl iodide in the presence of sodium carbonate solution

Discussion

21.	How many position isomers are possible for diethyl ether including it?
Answer» How many position isomers are possible for diethyl ether including it?

Discussion

22.	44. In which of the following acid-base titration, pH is greater than 8 at equivalence point? (1) Acetic acid versus ammonia (2) Acetic acid versus sodium hydroxide (3) Hydrochloric acid versus ammonia (4) Hydrochloric acid versus sodium hydroxide
Answer» 44. In which of the following acid-base titration, pH is greater than 8 at equivalence point? (1) Acetic acid versus ammonia (2) Acetic acid versus sodium hydroxide (3) Hydrochloric acid versus ammonia (4) Hydrochloric acid versus sodium hydroxide

Discussion

23.	On which quantum numbers does the orbital angular momentum of an electron in a hydrogen-like atomic orbital depend?
Answer» On which quantum numbers does the orbital angular momentum of an electron in a hydrogen-like atomic orbital depend?

Discussion

24.	How much electricity in terms of Faraday is required to produce 20.0 g of Ca from molten CaCl2.
Answer» How much electricity in terms of Faraday is required to produce $20.0 g$ of $C a$ from molten $C a C l_{2}$ .

Discussion

25.	How to find point of discontinuity??
Answer» How to find point of discontinuity??

Discussion

26.	who discovered electrons
Answer» who discovered electrons

Discussion

27.	Fastest rate of SN1 reaction is given by the which molecule?
Answer» Fastest rate of $S_{N} 1$ reaction is given by the which molecule?

Discussion

28.	Which of the following is more volatile a) C2H5OH b)H2O C)NH3 D)HF
Answer» Which of the following is more volatile a) C2H5OH b)H2O C)NH3 D)HF

Discussion

29.	ntif angle of incline is 37 degree from horizontal and body is projected up at 53 degree from the incline, range will ben
Answer» ntif angle of incline is 37 degree from horizontal and body is projected up at 53 degree from the incline, range will ben

Discussion

30.	Why when Zn reacted with conc. H2SO4 gives out SO2 and not H2 ?
Answer» Why when Zn reacted with conc. H2SO4 gives out SO2 and not H2 ?

Discussion

31.	When 4Be9 atom is bombarded with α− particles, one of the products of nuclear transmutation is 6C12 .
Answer» When $_{4} B e^{9}$ atom is bombarded with $α -$ particles, one of the products of nuclear transmutation is $_{6} C^{12}$ .

Discussion

32.	Which pair of elements has the same characteristic chemical propertie(1) Z 13, Z = 22 (3) Z = 4, Z = 24 (2) Z =3, Z = 11 (4) Z= 2, Z 4
Answer» Which pair of elements has the same characteristic chemical propertie(1) Z 13, Z = 22 (3) Z = 4, Z = 24 (2) Z =3, Z = 11 (4) Z= 2, Z 4

Discussion

33.	The stoichiometry of the following reaction is, K2S208 (aq) +2Klaq)→ 2K2SO4(aq) +2(aq)
Answer» The stoichiometry of the following reaction is, K2S208 (aq) +2Klaq)→ 2K2SO4(aq) +2(aq)

Discussion

34.	Propene is treated with Cl2/CCl4. The product formed is
Answer» Propene is treated with $C l_{2} / C C l_{4}$ . The product formed is

Discussion

35.	The tendency towards formation of colouredions is the maximum in:
Answer» The tendency towards formation of coloured ions is the maximum in:

Discussion

36.	What is the difference between nascent hydrogen and atomic hydrogenAnd is nascent hydrogen a single atom or a molecule
Answer» What is the difference between nascent hydrogen and atomic hydrogen And is nascent hydrogen a single atom or a molecule

Discussion

37.	why their is only one sigma bond and two pi bond ?
Answer» why their is only one sigma bond and two pi bond ?

Discussion

38.	What are the Factors affecting bond angle ?
Answer» What are the Factors affecting bond angle ?

Discussion

39.	A tertiary alcohol H upon acid catalyzed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only The structure of compound I is
Answer» A tertiary alcohol H upon acid catalyzed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only The structure of compound I is

39.

A tertiary alcohol H upon acid catalyzed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only The structure of compound I is

Answer»

A tertiary alcohol H upon acid catalyzed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only

The structure of compound I is

Discussion

40.	The odd decomposition of carbon chlorine bond form [UPSEAT 1999]
Answer» The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

40.

The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

Answer»

The odd decomposition of carbon chlorine bond form

[UPSEAT 1999]

Discussion

41.	Difference between surface area and contact area
Answer» Difference between surface area and contact area

Discussion

42.	Which of the following is the most stable conformer of butane-2,3-diol?
Answer» Which of the following is the most stable conformer of butane-2,3-diol?

Discussion

43.	{ A sample of gas in a box is at pressure }P_0 and }}{ temperature }T_0 . If number of molecules is doubled }} and total kinetic energy of the gas is kept constant, } then final temperature and pressure will be
Answer» { A sample of gas in a box is at pressure }P_0 and }}{ temperature }T_0 . If number of molecules is doubled }} and total kinetic energy of the gas is kept constant, } then final temperature and pressure will be

Discussion

44.	The size of isoelectronic species F⊖, Ne and Na⊕ is affected by
Answer» The size of isoelectronic species $F^{⊖}$ , $N e$ and $N a^{\oplus}$ is affected by

Discussion

45.	If 3 electrons could be accommodated in an orbital then the element with atomic number 50 will belong to?
Answer» If 3 electrons could be accommodated in an orbital then the element with atomic number 50 will belong to?

Discussion

46.	For the reaction H2(g) +1/2O2(g)--->H2O(l), delta(Cp)= 7.63cal/g; delta (H) at 25deg=68.3Kcal what will be the value(in Kcal) of delta(H) at 100 deg.C?
Answer» For the reaction H2(g) +1/2O2(g)--->H2O(l), delta(Cp)= 7.63cal/g; delta (H) at 25deg=68.3Kcal what will be the value(in Kcal) of delta(H) at 100 deg.C?

Discussion

47.	The IUPAC name of the compound
Answer» The IUPAC name of the compound

Discussion

48.	The equivalent weight of metal chloride will be if equivalent weight of its oxide is 24 Options: a- 15.5 b- 51.5 c- 35.5 d- 71
Answer» The equivalent weight of metal chloride will be if equivalent weight of its oxide is 24 Options: a- 15.5 b- 51.5 c- 35.5 d- 71

Discussion

49.	The major product P for the given reaction is :
Answer» The major product P for the given reaction is :

Discussion

50.	Why ionic solid don't have simple cubic packing?
Answer» Why ionic solid don't have simple cubic packing?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

explain hunsidecker reaction

Why is SO2 more acidic than SeO2

Among the alkaline earth metals, the element having the lowest melting point is:

Which of the following is a free radical substitution?

250 mL of a 2% (w/v) NaOH solution is diluted up to 600 mL. Find the resultant molarity of the solution.

Select the acid with the highest Ka (i.e., lowest pKa).

59. A solution is made by dissolving 20g of a substance in 500mL of water. Its osmotic pressure was found to be 600mm of Hg at 15^° C. Find the molecular weight of the substance

What is the material used in push button lighter or gas lighter?

number of isomers of \lbrack Co(NH3)4Cl2\rbrack and total possible isomers of \lbrack Cu(NH3)4\rbrack\lbrack PtCl4\rbrack are

Predict the product for the following elimination reaction.

31. How many number of atoms in 10ml of ammonia?

The presence of _____ ion is confirmed by lead acetate paper test.

In an atom, the total number of electrons having the quantum numbers n=4, |ml|=1 and ms=−12, is

What are the structures of 1 pentanal , 3 pentanone ,Ethyl alcohol and isobutyl alcohol

Is a 100% co-valent compound possible?

What is the starting material for the given oxidation reaction?

Myoglobin is present in

Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:

29. Write reaction of the final alkylation product of aniline with exvess of methyl iodide in the presence of sodium carbonate solution

How many position isomers are possible for diethyl ether including it?

44. In which of the following acid-base titration, pH is greater than 8 at equivalence point? (1) Acetic acid versus ammonia (2) Acetic acid versus sodium hydroxide (3) Hydrochloric acid versus ammonia (4) Hydrochloric acid versus sodium hydroxide

On which quantum numbers does the orbital angular momentum of an electron in a hydrogen-like atomic orbital depend?

How much electricity in terms of Faraday is required to produce 20.0 g of Ca from molten CaCl2.

How to find point of discontinuity??

who discovered electrons

Fastest rate of SN1 reaction is given by the which molecule?

Which of the following is more volatile a) C2H5OH b)H2O C)NH3 D)HF

ntif angle of incline is 37 degree from horizontal and body is projected up at 53 degree from the incline, range will ben

Why when Zn reacted with conc. H2SO4 gives out SO2 and not H2 ?

When 4Be9 atom is bombarded with α− particles, one of the products of nuclear transmutation is 6C12 .

Which pair of elements has the same characteristic chemical propertie(1) Z 13, Z = 22 (3) Z = 4, Z = 24 (2) Z =3, Z = 11 (4) Z= 2, Z 4

The stoichiometry of the following reaction is, K2S208 (aq) +2Klaq)→ 2K2SO4(aq) +2(aq)

Propene is treated with Cl2/CCl4. The product formed is

The tendency towards formation of colouredions is the maximum in:

What is the difference between nascent hydrogen and atomic hydrogenAnd is nascent hydrogen a single atom or a molecule

why their is only one sigma bond and two pi bond ?

What are the Factors affecting bond angle ?

A tertiary alcohol H upon acid catalyzed dehydration gives a product I. Ozonolysis of I leads to compounds J and K. Compound J upon reaction with KOH gives benzyl alcohol and a compound L, whereas K on reaction with KOH gives only The structure of compound I is

The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

Difference between surface area and contact area

Which of the following is the most stable conformer of butane-2,3-diol?

{ A sample of gas in a box is at pressure }P_0 and }}{ temperature }T_0 . If number of molecules is doubled }} and total kinetic energy of the gas is kept constant, } then final temperature and pressure will be

The size of isoelectronic species F⊖, Ne and Na⊕ is affected by

If 3 electrons could be accommodated in an orbital then the element with atomic number 50 will belong to?

For the reaction H2(g) +1/2O2(g)--->H2O(l), delta(Cp)= 7.63cal/g; delta (H) at 25deg=68.3Kcal what will be the value(in Kcal) of delta(H) at 100 deg.C?

The IUPAC name of the compound

The equivalent weight of metal chloride will be if equivalent weight of its oxide is 24 Options: a- 15.5 b- 51.5 c- 35.5 d- 71

The major product P for the given reaction is :

Why ionic solid don't have simple cubic packing?